Optolong L-eNhance Filter - 2"

Brand: Optolong

SKU : OL-13802

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  • The convenience and cost effectiveness of this filter allows amateurs to image a rich selection of astronomical images, even in bright, heavily light-polluted areas.
  • Isolates H-alpha, H-beta, and Oxygen iii Nebula Emission Lines
  • The bandwidths are 24nm for OIII and H-beta, and 10nm for Ha
  • Maximum Transmission of up to 90%

Product Details

  • About L-eNhance Filter

    The relentless spread of urbanization and its associated light pollution have become a growing problem for all amateurs and astrophotographers. The current fixes to the problem can be expensive and might include the purchase of a monochrome camera, several types of narrowband filters and a filter wheel.

    L-eNhance provides an economical and practical fix for amateurs. It is a dual-band pass filter which has been designed for DSLR (digital SLR), color CMOS and CCD cameras. 

    Optolong believes the design of their L-eNhance filter is a technical innovation among filters. It effectively isolates the H-alpha, H-beta, and Oxygen iii nebula emission lines and achieves a maximum transmission of up to 90-percent. The performance of this filter delivers images that control the impact from light polluted skies.


    L-eNhance Filter Spectrum Curve

    The bandwidths:

    = 24nm for OIII and H-beta

    = 10nm for Ha



    Compare the L-eNhance, L-eXtreme, and L-Pro filters:

    Optolong L-eNhance Filter - 1-25-transmission-01

    Optolong L-eNhance Filter - 1-25-transmission-02

    Optolong L-eNhance Filter - 1-25-transmission-03

    You can also view these charts in greater detail in the Gallery

    Optolong specially designed and optimized their dual-band L-eNhance filter according to the characteristics of celestial body emission lines and features of the light pollution spectrum span. This retains the prominent color of nebula RGB while blocking out most of light pollution.

  • specifications

    BandpassMulti Bandpass
    Filter ShapeRound
    Filter Thickness1.85mm
    Filter TypeLight Pollution/City Light Suppression
    Free ShippingYes
  • included items

    Package Details

    • Silver cardboard box
    • Plastic PP box
    • Imported high pressure EVA case lining

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